本文采用山丘状紧凑基样条的线性组合为试函数,建立了用混合配点格式加权余值法求解弹性压杆稳定问题的计算格式,并可由此求得,不同边界条件下的临界力,最后列举等截面压杆的几组数字结果并与精确解作了比较。 In this paper, a linear combination of hills-like compact base splines is used as a trial function, and a calculation format for solving the stability problem of elastic compression rods by using the mixed collocation format weighted residual value method is established, and the critical force under different boundary conditions can be obtained. Finally, several groups of digital results of equal section compression bars are listed and compared with the exact solutions.